NAME    [Toc]    [Back]

       iscc - serial communications interface

SYNOPSIS    [Toc]    [Back]

       controller  iscc0  at  isa0

DESCRIPTION    [Toc]    [Back]

       An  onboard  Zilog 8530 DUART provides AXPvme-based Single
       Board Computers with console  (CON)  and  auxiliary  (AUX)
       serial  communications  ports.  Both serial communications
       ports can operate  at  baud  rates  from  B50  to  B38400,
       excluding B134 (see tty(7)).

       On  AXPvme Single Board Computers configured with a graphics
 head as the system console, the CON serial  communications
  port  (/dev/tty01) is available for use by application
 programs as an additional communications port.

       In the absence of a graphics head, the CON serial communications
  port  (/dev/console)  becomes the system console.
       When used as the serial system  console,  the  CON  serial
       communications  port  always operates at 9600 BPS, 8-bits,
       and no parity.

       Regardless of system console, the  AUX  serial  communications
  port  (/dev/tty00)  is  always available for use by
       application programs.

RESTRICTIONS    [Toc]    [Back]

       Data communications equipment attached to the  CON  serial
       communications  port  must  be set to 9600 BPS, 8-bits, no
       parity when configured as the serial system  console.  The
       iscc terminal driver enforces this restriction.

       No  modem  control  is supported for either the CON or AUX
       serial communications ports.

FILES    [Toc]    [Back]

       console terminal local terminal local terminal

SEE ALSO    [Toc]    [Back]

       console(7), devio(7), tty(7), MAKEDEV(8)



                                                          iscc(7)